Cooling device for hydrocarbon engines



Oct. 14, 1930. c, A E 1,778,527

COOLING DEVICE FOR HYDROGARBON ENGINES Filed June so, 192s Patented Oct. 14, 1930 UNITEDrSTATES CALVIN GLENN HARTLEY, F ROANOKE,'INDIANA COOLING DEVICE non HYiJnocAnBoiv ENGINES Application filed. June 30,

This invention relates to improvements in hydrocarbon engines for airplanes, automobiles, etc., and the object thereof is to provide means for cooling the cylinders of the engine by effectively diverting the atmospheric air encountered while traveling rapidly. Another object is to provide air deflecting means for the various cylinders of the engine whereby each of the cylinders will have applied thereto deflected atmospheric air without hindrance from the deflecting means for the companion cylinders.

These objects are accomplished by the construction illustrated in the accompanying drawings, in which Fig. 1 is a front end elevation of an engine equipped with the invention;

Fig. 2 is a plan view projected from Fig. 1; and

2 Fig. 3 is a perspective View of one of the deflecting members.

The characters appearing in the description refer to parts shown in the drawings and designated thereon by corresponding characters.

The invention comprises an appliance applicable to a hydrocarbon engine especially of the multiple cylinder type, which appliance consists of a series of deflecting plates 1, 2,

3, and 4 that are mounted respectively adj acent the corresponding engine cylinders 5, 6, 7 and 8 upon the outer side thereof and spaced therefrom so as to admit of the pas sage of air between each plate and the corresponding cylinder.

Each deflecting plate is shaped with an inwardly turned end portion 9 that is disposed concentrically with its cylinder and extends partially around the rear part thereof. The opposite end portion of each plate has formed therein a series of longitudinally disposed corrugations 10, and is arched outwardly between its upper and lower edges.

' The plates are secured to their respective cylinders by connections 11 and 12 in any suitable manner, such as by welding said connections to the plate and to the finns 13 of the corresponding cylinder. The connections 11 for the plate 1 which is attached to the cylinder 5 are of suflicient length that the 192s. sum No. 289,386.

forward portion of the plate is sustained in an outwardly and forwardly inclined angle so that when the engine travels forwardly the atmospheric air encountered becomes deflected by the plate against the corresponding side of the cylinder and directed by the curved rear end 9 against the back or rear portion of the cylinder. The connections 11 for the plate 2 are so proportioned that the front edge of said plate is sustained in a plane outwardly beyond the front edge of the plate 1, and likewise the succeeding plates 3 and 4 are sustained so that their outer ends extend respectively in planes beyond those of the preceding plates. In this manner each succeeding plate encounters atmospheric air that is unobstructed by the preceding plate, during the forward travel of the engine, and thus the cooling effect of the air upon the engine cylinders is accomplished with more or less uniformity in extent.

The curved rear end of each plate is held spaced from the rear part of its cylinder a sufiicient distance as to admit of the passage of the deflected air therebetween, and so that the deflected air is prevented from becoming pocketed or otherwise retarded in its circulation between the plate and the cyl-' inders.

In operation of the invention, as the en- 30 gine travels forwardly, the encountered air passes between each plate and the corresponding cylinder, and is deflected between said cylinder to the opposite side of said succeeding cylinder. Thus, the sides of said succeeding cylinders opposite their deflecting plates encounter air deflectedfrom the plates of the preceding cylinders and are cooled thereby.

Where the engine is provided with two series of cylinders, and the cylinders of one series are disposed radially respecting the cylinders of theother series, the deflecting plates for the cylinders of one series are preferably positioned upon the sides thereof opposite to the arrangement of the deflecting plates and the other series of cylinders. v In this "manner is obviated conflict of air passing from between the cylinders of one series and the air passing from between the cylinders of the other series.

The arrangement of the deflecting plates in each series so that the succeeding plates extend out beyond the path of the preceding plates is especially effective in engaging and deflecting the slip stream of air passing toward the engine from the propeller of the airplane.

hat I claim is 1. In combination with a hydrocarbon engine having a succession of cylinders spaced apart, a series of air deflecting plates, each being fixed adjacent the side of a corre- 1 sponding one of said cylinders, the forward portion of each plate being inclined laterally outwardly and forwardly, and its rear portion being curved and extending adjacent to and spaced from the rear wall of its cylinder, the forward end of each succeeding plate being disposed in a plane beyond that of the forward end of the preceding plate, outwardly from the path of travel thereof.

2. An internal combustion engine having a succession of spaced cylinders and an air deflecting plate for each of said cylinders, each plate being fixed adjacent one side of the corresponding cylinder and being inclined outwardly and forwardly, the forward end of each succeeding plate being disposed in a plane laterally beyond that of the forward end of the preceding plate, out from the path of the forward travel thereof.

3. In combination with a vehicle engine of the hydrocarbon type, provided with a succession of cylinders, a cooling means for said cylinder comprising air deflecting plates fixed respectively adjacent the sides of the cylinders and spaced therefrom, and being inclined outwardly and forwardly, the forward end of each succeeding plate extending to a point outwardly from its cylinder beyond the path of travel of the preceding plate whereby atmospheric air is received between each cylinder and its deflecting plate that is unobstructed by the preceding plate.

4. An air cooling means for a vehicle engine of the hydrocarbon multiple cylinder type, which'means consists of a series of air deflecting plates, one for each of said cylinders, the forward portion of each plate having longitudinal corrugations therein and being outwardly arched from its bottom to its top edge, the rear end of said plate being curved inwardly, each plate being fixed adjacent the side of the corresponding cylinder, the forward portion thereof being inclined outwardly and forwardly.

5. An air cooling means for a vehicle engine of the hydrocarbon multiple cylinder type, which means consists of a series of air deflecting plates fixed respectively in connection with the corresponding cylinders adjacent one side thereof, the forward portion of each plate being arched between its top CALVIN GLENN HARTLEY. 

